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111.
Tessaleno Devezas Francisco Cristovão L. de Melo Maria Luisa Gregori Maria Cristina V. Salgado Joana R. Ribeiro Christian B.C. Devezas 《Technological Forecasting and Social Change》2012,79(5):963-985
This article is geared toward shedding some more light on what may be the next space race and its contours.Space flight is undoubtedly a human achievement of the second half of the 20th century, and probably the most audacious one of the past century. The space race started suddenly in the 1950s and has grown explosively during the following two decades, but decreased steadily after the 1970s. After the 1990s, however, we have seen a shy rebirth of space-related activities, when many other actors (states) entered the stage, adding up to the agonizing role of the two-actor piece that we have witnessed during the so-called Cold War.The opening years of the 21st century provided a more complex narrative for space exploration. At the start of the new millennium a new technosphere [1] emerged, dominated by what is used to be called as the Information and Communications Technologies (ICT), with the Internet playing the leading role among the bandwagon of technological novelties that appeared during the twilight of space activities. In despite of the fact that artificial satellites represent the very backbone of the global communications system, space activities seem to play a secondary role amidst the apparently accelerated rate of change concerning the technological systems of the present technosphere. But, as it is demonstrated in this paper, things are changing, and very probably a renewed space race will unfold in the coming decades.A question may be placed: what happened? Why the Earth stood still with regard to the race toward the cosmos? Answer: futurists, even prestigious ones like Herman Kahn and Arthur Clarke, did not consider the existence of socioeconomic long waves (Kondratieff waves, or K-waves for short) with their two decades long economic downturn, which has contributed to the deceleration of space-related activities.Analyzing the worldwide evolving scenario of space-related activities during the last eighty years under the framework of the succeeding K-waves and applying some technological forecasting tools, namely the logistic analysis, technological surveillance and intensive data mining, scrutinizing more than 7500 events occurred in the period 1930–2010 related with space activities, it is demonstrated that the space race like the one that we have witnessed until now is a natural growth process that has saturated at the dawn of this century. The same analysis demonstrates that a new growth process in this field might be nowadays under way with contours very different from that imagined by futurists and science fiction writers sixty years ago. Also the main trends in the usage of launching vehicles and satellites are framed and discussed in this paper. 相似文献
112.
In a recent study, Dash and Raja (2013) have shown that the size and composition of public expenditure of Indian states are systematically linked with political determinants such as the extent of government fragmentation, strength of opposition, electoral years, and ideology. This study extends the questions to whether there are similar links to revenue collections by the governments that rule the different states in India. Using the same time period of the previous study, four revenue measures related to tax collection and internal debt are considered and four different sets of hypotheses are developed by linking the political determinants with each of the revenue measures. The overall findings of the study suggest that the government-specific political determinants are significant and robust determinants of revenue collections of the Indian states. 相似文献
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This paper examines the differences between leveraged and unleveraged Exchange Traded Funds (ETFs), particularly for liquidity and volatility characteristics. The impact of leverage on intraday liquidity (spread and depth) is analysed in two periods – one of normal volatility and the other of abnormal/high volatility. There is a significant difference in spread and depth of leveraged and unleveraged ETFs in periods of both normal volatility and high volatility; however, this difference is more pronounced in higher volatility periods. In high volatility periods, liquidity typically diminishes in all ETFs, and this is even more so for the leveraged ETFs. When leveraged ETFs are segregated into multiples based on their power to replicate the underlying benchmark (i.e. multiples of ?3, ?2, ?1, 2, 3), the difference in spreads between normal and high volatility periods is typically larger. The double-leveraged ETF has the most significant difference between the positive and negative counter parts. However, the relationship in the progression of the multiples does not change linearly to correspond with the level of volatility. This may be due to the nonlinear relation between volume and volatility. We shed light on the magnification effect of financial leverage on microstructure of the ETFs. 相似文献
116.
This study examines the relationship between various financial inclusion measures and banks' performance across multiple countries with varying institutional, regulatory and income levels. To construct an aggregate bank performance index, we employ principal component analysis, which utilises a set of critical indicators summarised by the CAMEL rating system, including banks' solvency, asset quality, efficiency, profitability and liquidity. Our primary findings indicate that different measures of financial inclusion exhibit varying associations with bank performance. Specifically, there is a trade-off between bank performance and credit deepening, especially in high-income nations. Conversely, in low-income nations, higher financial inclusion, measured by deposits to GDP, number of deposits, and number of borrowers, does not affect bank performance adversely. Banks in low-income nations could achieve significant gains by improving financial access and enhancing regulatory environments. 相似文献
117.
Gary V. Engelhardt 《Economics Letters》2011,113(3):237-240
I show empirically that state wage-payment laws, which forbid deductions from wages and salaries without the written permission of the employee, constituted a binding constraint on firms’ choices to adopt automatic enrollment in 401(k) plans prior to 2006. 相似文献
118.
The challenges posed by the economic downturn on baccalaureate nursing schools in the southeast as it relates to their perceptions of changes in the number of applicants, acceptance rates, employer recruitment efforts, and student clinical and job placement were explored. Responses from deans and program directors indicated nursing schools are experiencing negative effects of the economic downturn in the form of graduates having difficulty finding employment, decreased recruitment efforts from prospective employers, difficulty locating clinical placements for students, and no change in faculty applicants despite an increase in undergraduate student applicants as well as graduate student applicants. These multiple factors combined could signal the death knell for programs that are ill-prepared to deal with such a crisis. Programs need to be aggressive in their efforts to draw health care recruiters as well as qualified faculty applicants to their campuses. Nursing schools must be able to clearly show why their graduates are superior to other programs' graduates when competing for both highly qualified faculty applicants and prospective student employers. 相似文献
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Evangelos V. Dioikitopoulos Stephen J. Turnovsky Ronald Wendner 《International Economic Review》2020,61(1):351-382
This article advances the hypothesis that the intensity of status preferences depends negatively on the average wealth of society (endogenous dynamic status effect), in accordance with empirical evidence. Our theory replicates the contradictory historical facts of an increasing saving rate along with declining returns to capital over time. By affecting the dynamics of the saving rate, the dynamic status effect raises inequality, thereby providing a behavioral mechanism for the observed diverse dynamics of income inequality across countries. In countries in which the dynamic status effect is strong (weak), inequality rises (declines) over time in response to a positive productivity shock. 相似文献